Kagi Search MCP server for AI agents

This MCP server integrates with the Kagi Search API, allowing you to perform web searches and other operations through Claude. Currently supporting search functionality, with plans to expand to additional features like summarization and FastGPT responses.

Installation

Option 1: Install via Smithery

The easiest way to install the Kagi Server is using Smithery:

npx @smithery/cli install kagi-server --client claude

Option 2: Manual Setup

To manually set up the Kagi Server:

Install dependencies:
```
npm install
```
Build the server:
```
npm run build
```
For development with auto-rebuild:
```
npm run watch
```

Configuration

Setting Up Your API Key

Create a .env file in the root directory with your Kagi API key:

KAGI_API_KEY=your_api_key_here

Configuring Claude Desktop

Add the server configuration to Claude Desktop:

MacOS: ~/Library/Application Support/Claude/claude_desktop_config.json
Windows: %APPDATA%/Claude/claude_desktop_config.json

{
  "mcpServers": {
    "kagi-server": {
      "command": "/path/to/kagi-server/build/index.js",
      "env": {
        "KAGI_API_KEY": "your_api_key_here"
      }
    }
  }
}

Usage

Using Kagi Search

Once configured, you can ask Claude to perform web searches using the Kagi API. For example:

"Can you search for information about the latest advancements in quantum computing?"
"Search Kagi for the best coffee shops in San Francisco"
"Find recent research papers on machine learning using Kagi"

Claude will use the kagi_search tool to fetch results from Kagi's API and then present the findings to you.

Available Tools

Currently, only the kagi_search tool is implemented:

Takes a query string and optional limit as parameters
Returns search results from Kagi's API

Debugging

Since MCP servers communicate over stdio, you can use the MCP Inspector for debugging:

npm run inspector

This will provide a URL to access debugging tools in your browser.

How to install this MCP server

For Claude Code

To add this MCP server to Claude Code, run this command in your terminal:

claude mcp add-json "kagi-server" '{"command":"/path/to/kagi-server/build/index.js","env":{"KAGI_API_KEY":"your_api_key_here"}}'

See the official Claude Code MCP documentation for more details.

For Cursor

There are two ways to add an MCP server to Cursor. The most common way is to add the server globally in the ~/.cursor/mcp.json file so that it is available in all of your projects.

If you only need the server in a single project, you can add it to the project instead by creating or adding it to the .cursor/mcp.json file.

Adding an MCP server to Cursor globally

To add a global MCP server go to Cursor Settings > Tools & Integrations and click "New MCP Server".

When you click that button the ~/.cursor/mcp.json file will be opened and you can add your server like this:

{
    "mcpServers": {
        "kagi-server": {
            "command": "/path/to/kagi-server/build/index.js",
            "env": {
                "KAGI_API_KEY": "your_api_key_here"
            }
        }
    }
}

Adding an MCP server to a project

To add an MCP server to a project you can create a new .cursor/mcp.json file or add it to the existing one. This will look exactly the same as the global MCP server example above.

How to use the MCP server

Once the server is installed, you might need to head back to Settings > MCP and click the refresh button.

The Cursor agent will then be able to see the available tools the added MCP server has available and will call them when it needs to.

You can also explicitly ask the agent to use the tool by mentioning the tool name and describing what the function does.

For Claude Desktop

To add this MCP server to Claude Desktop:

1. Find your configuration file:

macOS: ~/Library/Application Support/Claude/claude_desktop_config.json
Windows: %APPDATA%\Claude\claude_desktop_config.json
Linux: ~/.config/Claude/claude_desktop_config.json

2. Add this to your configuration file:

{
    "mcpServers": {
        "kagi-server": {
            "command": "/path/to/kagi-server/build/index.js",
            "env": {
                "KAGI_API_KEY": "your_api_key_here"
            }
        }
    }
}

3. Restart Claude Desktop for the changes to take effect